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Unit 2b

• Type locality: Kitadaito island, Kitadaito city, Shimajiri county, Okinawa prefecture
• Coherent formation
• Oceanic island sediments
• Pleistocene

• Sedimentary facies: Marine
• Lithofacies: Framestone, Bioclastic packstone

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Mount Kogane, Kitadaito island, Kitadaito city, Shimajiri county, Okinawa pref.

• Takayanagi et al. (2010) Jour. Geol. Soc. Japan, vol.116, no.4, pp.237-240 DOI